Valjoux was a movement manufacturer that designed and produced the caliber 7750. Valjoux is now part of ETA. What used to be called the Valjoux 7750 is now called the ETA 7750, unless of course it is an original 7750 that was made by Valjoux before becoming part of ETA. ETA. . Most modern examples of the caliber 7750 will have 25 jewels. The first versions had 17 jewels. There are other versions with 24 jewels. . Valjoux (the name comes from Vallée de Joux) joined Ebauches SA (ESA) in 1944. ESA was acquired by SMH (Société de Microélectronique et d'Horlogerie). SMH, which was a. . As with other ETA movements, the 7750 is available in elabore, top, and chronometergrade. In addition to the base calibre 7750, the current. . If you see plastic parts in your caliber 7750 watch movement, do not be alarmed. It does not meanyou have a fake watch! The reset lever (stop lever) on the central chronograph wheel is constructed.
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